2024 : 4 : 18
Khalil Faghihi

Khalil Faghihi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-9884-1788
Education: PhD.
ScopusId: 6603751266
Faculty: Science
Address: Arak University
Phone:

Research

Title
Thermally Stable and Organo-soluble Polyamides Containingm Triazine Rings and Ether Linkages in the Main Chain: Synthesis and Characterization
Type
JournalPaper
Keywords
Polyamide; Thermally stable; Organo-soluble; Polycondensation; Triazine
Year
2015
Journal Chinese Journal of Polymer Science
DOI
Researchers Mohsen Hajibeygi ، Khalil Faghihi ، Majid Khodaei-Tehrani ، ZEINAB MIRZAKHANIAN

Abstract

Abstract In order to synthesize new polyamide (PA) 5 and copolyamides (CoPA) 7a−7d, a new-type of dicarboxylic acid containing triazine ring was successfully synthesized from 2,4-dichloro-6-methoxy-s-triazine 1 and 4-aminobenzoic acid. New polyamide 5 containing triazine moiety was prepared from 4,4'-(6-methoxy-1,3,5-triazine-2,4- diyl)bis(azanediyl)dibenzoic acid 3 and 4,4′-diaminodiphenylether by direct polycondensation reaction. Then new series thermally stable copolyamides 7a−7d with high solubility in common organic solvents were synthesized from the direct polycondensation reaction of diacid 3 as a first monomer, aliphatic-aromatic diacids 6a−6d as second diacids and 4,4′- diaminodiphenylether. All of the above polymers were fully characterized by 1H-NMR and FTIR spectroscopy, elemental analysis (CHN), inherent viscosity, solubility tests, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The resulted CoPAs 7a−7d have shown good inherent viscosities, solubility and thermal properties